matthews



J. MATTHEWS.

Grain Winnower.

N0. 31,577. Ptented Feb. 26,1861.

YUNITED STATES PATENTv OFFICE.

JAMES MATTHEVS, OF MIDDLETOVN, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND HENRY EGOLF, OF SAME PLACE.

GRAIN-SEPARAIOR.

Specification of Letters Patent No.

To all whom t may concern:

Be it known that I, J. MATTHEWS, of Midhad to the annexed drawings, making a part of this specification, in which- Figure l, is a perspective view, of the back end of the separator, and Fig. 2, is a perspective view of part of the front end of it. Fig. 3, is an enlarged View of the ball plate, and ball, and Fig. 4E is an enlarged view of the cup and its plate. Figs. 5 and 6, are perspective views of the plates shown in Figs. 3 and 4.

- The nature of my invention consists in placing a vertical screen, in the front end of the shoe, in front of the horizontal screens, and a plate, ball, and inverted cup, to hold up the front end of the shoe.

To enable others skilled in the art, to make and use my invention; I will proceed to describe its construction, and operation.

I construct my grain separator in the usual form.

A, A, is the frame, which is made as usual.

B, is the vertical screen. It is fastened in a permanent manner in the front end of the shoe, right under the grass seed box. It is intended to hold the grain which is not completely separated from the chaff, or lightcaps, from falling front of the horizontal screens, so that it may be separated from the chaff, or lightcaps, by being rubbed, and shaken, on the horizontal screen, until it is loosened from the lightcaps, so that the grains pass through the screen, and are saved and the lightcaps are blown back with the chaff. The said vertical screen should be so line as to prevent any grains from passing through it; each mesh should be about one eighth of an inch in size. By using said vertical screen, I am enabled to separate damp grain, in a perfect manner, as I need not blow so hard as to blow it back with the chaff, but hard enough to dryA it, and separate it perfectly from the lightcaps, and chaff. The air from the fan, passes through 31,577, dated February 26, 1861.

said vertical screen, with but little obstruction, and thus passes under, and over, the horizontal screens, in a manner not obtainable without the use of said vertical screen. T-he advantages of my vertical screen, are very great, as by using it in my grain separators, I am enabled to save all the grains covered by lightcaps, in a very simple, and easy manner, and it is durable, and not liable to be injured, or put out of order.

C, Fig. 2, is a small plate of iron, permanently fastened near the top of the frame, just under the cap of the frame, and above, and in front of the shoe, and screens. On said plate, is a small ball, which ball, is kept in place by the inverted cup E. The cup E, is permanently fastened to the front part of the shoe, and it rests, and moves, on the small ball, or balls, under it with less friction than any other mode vof arrangement. I use the cup in the inverted form, so as to have the plate below, so that the dirt will not collect in the cup. One ball is sufhcient, but two, or more balls may` be used, with good effect. On the front of cup E, is a small projection with a hole in it, in which the end of rod D, is hooked. The motion of rod D, is given as usual, by the fan shaft, and a small crank &c.

Fig. 3 is an enlarged view of the ball plate and ball. C represents the plate and K the ball. This plate is fastened as described on page 3rd.

Fig a is an enlarged view of the cup and its plate. E represents the plate and H the cup, which is inverted upon plate C and over the ball K, so as to keep the ball K to its place. I invert the cup to prevent the dirt from collecting in the cup I-I. The cup plate E is fastened as described on page 3rd of my specification. J represents the screws by which plates E and C are fastened. I represents the hole on the front end of plate E in which the end of rod D is hooked as described on page 3rd of my specification.

The same letters on different figures represent the same thing. The said plate, cup and ball, or balls, make the most durable,

4and free arrangement for operating the front end of the shoe, and it is so simple as to cost but a trifle, and it gives the shoe a very rapid motion, or shake, which 1s necessary to separate the grain, from the lghtl 2. The employment of the plate E, as Conl0 caps and cha. The back end of the Shoe structecl the plate C, and the ball K, in conhangs on two. hooks, as usual. neeton with the Shoe whereby said shoe is I clalnhung and allowed to vibrate at its front 1. The employment of the Vertical screen end substantially as specified. D, arranged n relation to the Jfan and. the J. MATTHEWS. horizontal screens of the shoe between said Vitnesses: shoe and fan as and for the purpose spec- WM. ROSSITER, fled. Jos. H. BOSLEY. 

